Once installed, open office documents and google cloud connect plugin will show on the document.

Word:

Excel:

Once you sync the documents with the cloud, it will start showing under google docs, so you can grab and edit them when you are on the go:

Remember to install Google Docs on your smartphone as well. It is available for Android. For iPhone and iPad, I didn’t find any apps by google for docs, but you can view the documents by launching Safari and pointing it to docs.google.com.